first of all, this is a razor tight race, so they would argue that every single vote matters, but i will hold special significance to president obama. in large part thanks to white working class voters who voted for him. now, we interviewed really the sort of political queen here in iowa. who was with the des moines register. here's how she put it. she say quote, iowa is important symbolically. if other states see they are turning away from barack obama, that is a harbinger for the rest of the country, so that really sums up in large part, why is state is so important to president obama. he has put a lot of money into this state. this obama campaign has more than 60 campaign offices here. as far as we can tell, the romney campaign has about six. they are working more on their ground game with the internet, martin. but this is certainly a state that both candidates are hoping to hold on to, but it holds special significance for the president. >> indeed, mr. romney is now off to new hampshire, where there are also four electoral available, so this is a real battle for every single one, sin